@charset "utf-8";
$fontSize:100;
@function r($p) {
    @return $p/$fontSize*1rem;
}
//海报
.banner_item {
    position: relative;
    width: 77%;
    margin: r(145) auto r(80);
    overflow: hidden;
}
.banner_img img{
    width: 100%;
    vertical-align: bottom;
}
.user_img{
    width: 77%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.img_item{
    width: 31%;
    overflow: hidden;
    div{
        width: 100%;
        padding-top: 100%;
        position: relative;
        margin-bottom: r(60);
        img{
            width: 100%;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%,-50%);
        }
    }
}
.load_btn{
    width: 200px;
    height: 40px;
    margin: 50px auto;
    border: 1px solid black;
    font-size: 14px;
    line-height: 40px;
    text-align: center;
    cursor: pointer;
}
.load_btn:hover{
    background: #B9B9B9;
    border: 1px solid #B9B9B9;
    color: white;
}
@media only screen and (max-width: 768px){
    .banner_item {
        width: 95%;
        margin: r(215) auto r(80);
    }
    .user_img{
        width: 95%;
    }
    .load_btn{
        width: 150px;
        height: 30px;
        margin: 30px auto;
        font-size: 14px;
        line-height: 30px;
    }
}
